117456081 has 16 divisors (see below), whose sum is σ = 167178240. Its totient is φ = 73135440.

The previous prime is 117456047. The next prime is 117456083. The reversal of 117456081 is 180654711.

It is a happy number.

It is not a de Polignac number, because 117456081 - 2⁷ = 117455953 is a prime.

It is a super-2 number, since 2×117456081² = 27591861927757122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117456083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10465 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (10448640).

Almost surely, 2^117456081 is an apocalyptic number.

It is an amenable number.

117456081 is a deficient number, since it is larger than the sum of its proper divisors (49722159).

117456081 is a wasteful number, since it uses less digits than its factorization.

117456081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29116.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 117456081 is about 10837.7156725945. The cubic root of 117456081 is about 489.7320220121.

The spelling of 117456081 in words is "one hundred seventeen million, four hundred fifty-six thousand, eighty-one".